sburlino



Oct. 27, 1931. SBURLINQ 1,828,849

CASH REGISTER Filed y 23, 1928 2 Sheets-Shee l Pascal Sburlino Oct; 27, '1931. s u o 1,828,849

CASH REGISTER Filed July 23, 1928 2 Sheets-Shee 2 gnvemfo'c I- f I Patented Oct. 2 7, 1931 UNITED STATES PATENT OFFICE PASCAL SBUBLINO, OF DAYTON, OHIO, ASSIGNOB TO THE NATIONAL CASE mm COMPANY, OF DAYTON, OHIO, A CORPORATION OF MARYLAND CASE REGISTER Application filed mg; 2a, 1928. Serial no. 894,645.

This invention relates to cash registers and like machines, and is more particularly di-.

'tion, access to the totalizers is normally prevented by a suitably locked lid.

To the totalizer disclosed in the patent to Carney, has been added a group of printing wheels, with manually operated means for taking an impression therefrom, as shown in the application of Von Pein above referred to.

Access to the totalizer for the purpose of printing the amount registered thereon, is

obtained by unlocking and raising the lid, which heretofore controlled safet devices to prevent actuation of the accessib e and movable parts, as the keys while the lid was in its raised position. Idowever, it has been found that, under certain circumstances,

with the lid partly raised, it was ossible for unscrupulous clerks to improper y manipulate the totalizer to cause it to register an incorrect amount.

In order to provide improved safety conditions which will render impossible such mismani ulation through improper operation of t e keys while the lid is raised, the

resent invention has for its main object the inclusion in a cash register of the type disclosed by Carney, of a novel and improved safety device which looks the totalizer. wheels against movement from. the time when the operator starts raising the lid until the time when it is practically closed.

Another object is to rovide a novel and improved interlock which prevents depression of a key and consequently operation of the machine while the lid is raised.

With these and incidental objects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawin which accompany and form a part of this specification.

Of said drawings:

Fig. 1 is a sectional view through the machine, showing the totalizer, the o crating means therefor, and the means for ta g the impression therefrom.

ig. 2 is a detail view, illustrating particularl the manner of actuating the drive sha t.

Fi 3 is a detail view of the lid and the inter ock between the lid and the drive shaft, and between the lid and the totalizer.

Fi 4 is a fragmentary view of one of the tfaotahzer wheels and the locking arm there- General description The machine disclosed by Carney, which is only, enerall illustrated in the present appilicatlon, inc udes a plurality of groups o eys and a totalizer for accumulating the amounts registered thereon by said keys.

Depression of the keys directly operates the actuating mechanism for the totalizer. This vactuating mechanism is substantially the same as that disclosed in the above men- 7 tioned Carney atent.

A type whee is conveniently connected to each totalizer 'wheel for recording the total.

A manually operated impression hammer coacts with the type wheels, by which an impression can be made on record material.

Detail description The keys 40 (Fig. 1) of each denominational group are, pivoted on a common shaft 41, extending between side frames 42' and 43, (Figs. 1, 2 and 3) of the machine, and

when any key is depressed, it raises a suitably graduated thrust link or actuator controller 44. The thrust link 44, as it rises,

causes its aduated' recess 45 to embrace a rod 46 carried by a yoke 47 pivoted on a shaft 1 48 extending between the side frames of the machine, and rocks said yoke clockwise a distance corres on'ding to the value of the key depressed, 'etermined by the distance between the bottom of the graduated recess and the rod 46 when the parts are in their normal positions. A toothed segment 49 fast on the yoke 47 actuates its associated totalizer wheel pinion 64 when the latter is engaged with its segment. There is a yoke 47 and a segment 49 for each denominational group of keys.

Depression of a key 40 (Fig. 2) also rocks a weighted key coupler 50 p1voted on trunnions 51 (Fig. l) and 52 (Fig. 2) in the side frames 42 and 43, respectively. The clockwise movement of the key coupler 50 (Fig. 2) lifts a bifurcated rotation rack bar 53 connected thereto by a pin and slot connection 39. The bifurcated rack bar embraces a rotation shaft 56. Teeth 54 formed on one inner Wall ofthe bifurcation in the rack bar 53 normally 'mesh with a gear 55 pinned on the rotation shaft 56 journaled in the side frames, and rotates the shaft in a clockwise direction-,as viewed in Fig. 2 (counter-clockwise in Fig. 1).

A spring-pressed arm 57 (Fig. 2) has an inclined face 38 lying in the path of the rack bar 53. Depresion of a key 40' rocks the key coupler 50 in clockwise direction (Fig. 2) to elevate the rotation rack bar 53, and as the bar rises, it contacts the inclined face 38 of the s ring-pressed arm 57 and forces it aside. if lug 37 on the bar contacts a guide rail 36 fast to the side frame 43, to retain the rack bar in its rectilinear path of travel against the tension exerted laterally against the rack bar by the spring-pressed arm 57.

As the rack bar 53 arrives at its upper limit of travel, the lug 37 escapes the guide rail 36, whereupon the spring-pressed shifting arm 57 rocks the rack bar to disengage the teeth 54 thereof from the car 55 and engage opposed rack teeth 58 i5nner wall of the bifurcation, with the gear At this time, the

ressure applied to the key 40 is relieved, w

ereupon the weight of the key coupler 50 lowers the rack bar 53 and B continues the clockwise rotation of the rotation shaft 56 (Fig. 2) by the rack teeth 58, which now mesh with the gear 55. As the rack bar 53 arrives at its normal or starting position, a. spring 59 (Fig. 2) rocks the rack bar 53 to re-engage the teeth 54 with the gear 55, reparatory to the next operation of the mac ine.

As the key 40 at the beginning of its depression, starts to rotate the shaft 56, a cam b 60 (Fig. 1) pinned to the shaft, rocks a forked lever 61, pivoted intermediate its ends at 35 on a totalizer frame 62. The forward end of the lever 61 abuts against a stud 63 in the totalizer supporting frame 62 and rocks ormed on the opposite aw re;

the frame clockwise'to engage the totalizer pinions 64 with their respective segments 49, so that when the segments are actuated, as

above described, an amount equal to the val a spring-pressed pawl 96 (Fig. 2) pivoted at 104 on the frame 43, coacts with the toothed periphery of a disk 97 pinned to the rotation shaft 56 and constitutes a full-stroke device to insure that the keys 40 shall be fully depressed and restored, the mechanism preventing retrograde movement of the shaft 56, and hence of the key 40 connected thereto through the key coupler 50, rotation rack 53 and gear 55 in well-known manner.

The totalizer pinions 64 are individually journaled on a totalizer shaft 65 carried by the totalizer supporting frame 62. Gears 66, fast to their respective totalizer pinions 64, mesh with corresponding gears 67 on a shaft 68, also carried by the totalizer frame 62. A type wheel 69 and a reading wheel (not shown herein) are fast to each gear 67 and rotate therewith. The'denominational adding segments 49, through this train of gears, accumulate various amounts, entered in the machine by the keys 40, on the type Wheels 69 and on the reading wheels.

To print totals and sub-totals of the amounts registered on the totalizer, a record material is inserted in a suitable chute 76 (Fig. 1) extending forwardly over the printing wheels 69 from a cross rod 78 to which the rear end of the chute is conveniently pivoted, or the record material may be drawn through the chute from a supply (not shown) within the machine. A hammer 77 likewise pivoted on the rod 78 overlies the record material in the chute and carries a platen 79. y imparting a sharp blow to the hammer, the platen drives the record material through anopening (not shown) in the chute against the uppermost types on the type wheels 69 to impress the amount on the record material, the impression being inked in any suitable manner (not s own).

The printing mechanism forms no part of the present invention and need not be more fully described, a complete disclosure thereof eing made in the Von Pein Patent No. 1,763,915, above referred to.

The totalizer may be reset to zero by the common expedient of manually turning the totalizer shaft 68 in any convenient manner (not shown) through one complete rotation rotated in accumulating amounts. This may be done by the provision of an 0 ing in the side of the cabm, through whic a key may be inserted. A longitudinal groove in the shaft 68 when the latter is rotated, picks up s rin ressed awls 99 ivoted to the res cti ve v h dels 69 t2 advancg the totalizer wh rzls to their zero positions.

A shield 70 cooperates with the side frames 42 and 43 of the machine to enclose the working parts with the exception of the printing hammer and record material chute, the shiel being apertured opposite the reading wheels to permit readin' the amount re 'stered on' the totalizer, an

the entire mac ine is enclosed within a cabinet 71 to prevent access by unauthorized ersons to the printing mechanism, as weli as preventing the insertion of wires or other tools through the read- I ing apertures in the shield '70 or around or through the printing mechanism for the purpose of mismanipulation.

Indeed when-the cabinet is'in place, the only accessible parts are the forward ends of the key levers 40 which roject through slots in the cabinet in a wel own manner, not shown.

. But it isnecessary to afford a means of access to the interior of the machine throu h the cabinet 71 to permit operation of t e printing mechanism, to which end, it is customary to provide an opening in the cabinet above the rinting mechanism-and the totalizer, whic opening is normally closed by a lid hinged to' the cabinet, and'locked against opening.

In general the key which unlocks the lid 80 is retained by the proprietor, but in many cases, as when two or more clerks on different shifts use the machine it is desirable to permit each clerk to have access to the printing mechanism to enable him to make a record of the total amount of sales made by him while on duty, as a check for his own protection, as well as to apprise the roprietor of the volume of business done uring the various shifts.

Access to the interior of the machine, however, if no safeguards were provided, would enable a dishonest employee to mismanipulate the record, and it has been customary, as

disclosed in the Von Pein patent referred to, to provide means tending to revent such mismanipulation by one who as access to therprinting mechanism.

e present inventlon s designed as an improvement on the mechanism shown in the Von Pein patent to render it even more difficult if not impossible to improperly manipulate or change the setting of the parts upon opening the lid, either accidentally or intentionally, and to this end, novel and imroved means is provided which becomes efective as the operator starts to raise the lid 80, to positively lock the totalizer wheels against rotation by any means, and to positively prevent rotation of the drive shaft 56,

Detents 100 fast on the cross shaft 84 lie opposite ratchet wheels 88 fast with the respective totalizer gears 66 on the totalizer shaft 65, and a spring 85 individual to the arm 83 tends to rock the arm counter-clockwise (Fig. 3) and with it the cross shaft 84 and detents 100 to engage the detents with their respective ratchets 88 and lock the totalizer wheels 66 against rotation in one direction.

The weight of the lid 80, however, when in closed position, operates through the link 81 and stud 86 to hold the arm 83 normally at the limit of its clockwise travel, and thus retain the detents 100 withdrawn from engagement with the locking ratchets 88.

A second link 89 pivoted at one end at 99 to the arm 83 is provided with an open ended slot 102 at its opposite end to embrace a stud 90 carried by a pawl 91 pivoted at 103 to the adjacent side frame 42. A- spring 92 individual to the pawl 91 tends-t0 draw the nose 93 of the pawl towards a ratchet wheel 95 fast to that end of the rotation shaft 56 which passes through the side frame 42 to the outside thereof. WVith the parts at rest in their home positions, the ratchet wheel 95 is positioned so as to bring a recess 94 opposite the path of the nose 93 of pawl 91.

The weight of the lid 80, when closed, acting through link 81 and arm 83 as heretofore explained, operates to hold the second-named link 89 at the leftward end of its path of travel (Fig. 3), the closed end of the slot 102 in the link 89 bearing against the stud 90 on the pawl 91 to hold the latter disengaged from the locking ratchet 95, thus freeing the rotation shaft 56 to the action of the keys 40.

Thus it will be seen that so long as the lid 80 remains closed, the totalizer locking detents and the rotation shaft locking pawl 91 remain in their idle positions.

Assuming, however, that, the keys 40 beingin their normal positions, the lid 80 is opened or raised.

At the very start, the lid 80 carrying the.

rotation rack bar 53 partway to partially clockwise to cause the stud 86 to follow up the inner end wall of the slot 87 in link 81 until a stop 105 arrests the arm at the end of its counter-clockwise path of movement.

Since the control arm 83 is fast on the crossshaft 84, the latter and its detents 100 turn with the arm 83 until the noses of the detents engage the ratchets 88 fast on their respective totalizer wheels to lock the latter against rotation.

Owing to the arrangement and operation of the. parts, the totalizer wheels are locked before the lid 80 is raised sufficiently to enable the insertion of a tool by which to mismanipulate the totalizer wheels, which are at all times held against reverse rotation by the usual locking detent pawls 106 (Fig. l).

The control arm 83 on its counter clockwise rotation under the influence of the spring 85 individual to the arm, draws the link 89 to the right (Fig. 3), thereby freeing the pawl 91 to the action of its spring 92, which rocks the pawl counter-clockwise to bring the nose 93 thereof opposite the abrupt side wall of the recess 94 in the locking ratchet 95 on the rotation shaft 56.

The pawl 91, when in its effective position, locks the rotation shaft 56, the rotation rack 53 (Fig. 2), the key coupler 50, and the keys 40 against effective operation, so that after the operator starts to raise the lid 80, any attempt to depress a key 10 will be frustrated, as will any attempt to restore the totalizers to zero, so that the only thing that can be done is to print the accumulated amount.

The longitudinal slot 87 in the link 81 permits the lid to be swung to its fully open position, the outer closed end of the slot bringing up against the stud 86 to prevent the lid from swinging too far back.

The lid 80 on being restored to its closed position, first lowers the link 81 relatively to the control arm 83, which latter remains at its farthest counter-clockwise limit of travel with the detents 100 engaged with the ratchets 88 on the totalizerwheels, until just as the'lid is about to arrive in its closed position, the inner closed end of the slot strikes the pin 86, and as the lid closes, the link 81 operating on the eccentrically located pin 86, rocks the control arm 83 to its farthest clockwise limit of travel, to rotate the cross shaft 84 similarly and withdraw the detents 100 from engagement with the totalizer ratchets 88.

The control arm 83 in rocking clockwise, thrusts the link 89 to the left (Fig. 3) .to disengage the pawl 91 from the ratchet 95 on the rotation shaft 56.

Assume that the operator through mistake or intention partially depresses a key 40 before lifting the lid 80 in the first instance.

'The key, when depressed, rocks the key coupler 5O clockwise (Fig. 2) and raises the turn the rotation shaft 56. Removal of pressure on the key 40 prior to the com letion of its down stroke, will cause the ull-stroke pawl 96 by engagement with the full-stroke ratchet 97, to lock the rotation shaft 56, and hence the locking ratchet 95 (Fig. 3) on the end thereof against reverse rotation. Hence, the totalizer pinions 64 (Fig. 1) are locked in mesh with their adding segments 49 with the parts in the positions which they occupied at the time when the partially depressed key was relieved of pressure, and the key is held in such position against restoration.

If, at this time, the operator lifts the lid, the withdrawal of the link 81 as above explained, will free the control arm 83 to the action of its individual spring which will immediately rock the control arm, its shaft 84 and the detents 100 in counter-clockwise direction to lock the totalizer wheels against rotation in one direction, the usual detents 106 positively locking the totalizer wheels against rotation in the opposite direction.

The control arm 83 in its counter-clockwise travel draws with it the link 89, to free the pawl 91 to the action of its spring 92 which rocks the pawl counter-clockwise to en age the pawl with its locking ratchet 95. he partial turning of the rotation shaft 56 under the action of the partly depressed key 40 has rotated the locking ratchet 95 to such an extent as to displace the deep notch 94 from the path of the locking pawl 91, so that the nose of the pawl engages one of the ratchet teeth on the periphery of the ratchet early in its operation, and hence is not permitted the travel it would have if it entered the notch 94, but owing to the loose or variable sliding connection provided by the stud and slot and 102 between the link 89 and the pawl 91, the early arrest of the pawl by its engagement with the locking ratchet has no effect on the effective operation of the detents 100, and the totalizer gears 64 will be locked whether or not an amount key 40 has been partially depressed.

It is apparent from Fig. 4 that with the detents in engagement with the ratchets 88, the gears 66 to which said ratchets are fixed, cannot be rotated clockwise, and therefore, the gears 67 to which type wheels 69 are secured, are locked against counter-clockwise movement.-

F rom the foregoing it will be noted that the provision of the slidable connection between the totalizer lock, and the rotation shaft lock together with the provision of the springs 85 and 92, respectively, individual to the above-named locks, makes it possible for the totalizer lock to become effective at a constant point in the operation of o ning the lid, irrespective of the time of edfctive operation of the rotation shaft lock, the arrest of which by its contact with the teeth of the ratchet 95 merely operates to arrest neaaeea a the and 90 while the link 89 drawn a the 7 right by the control arm 88 continues its" travel. I

As a result, the operator is still unable to I mismanipulate the totalizer wheels after ining access to the printing mechamsrm Restoration of the lid 80 toits closed gosition, operates as heretofore explalne to withdraw the totalizer and rotation-shaft 10 looks, allowing the totalizer to be returned to zero.

While the form of mechanism herein shown and described is admirably adapted to fulfill the ob'ects primarily-stated, it is to be 18 understoo that it is not intended to confine the invention to the one form or embodiment means to operate the actuators and the shaft;

' and a shiftable closure to normally prevent access to the totalizer; of safeguards to revent mismanipulation of the totalizer, w on the closure is o ened, including normally idle means to Ice the totalizer, and' normally ao ldle means tollock thedrive shaft; and a device, including a plurality of sliding connections, one connection beln'g intermediate the closure and the locking means for the totalizer, and another connection inter-, mediate said one connection and the locking means for the driveshaft, all connections operable 'under control of the closure to ena lo the "means for locking the totalizer to become effective irrespective of the means Q co'for locking the driveshaft.

. 2. In a machine of the class described, the combination with a totalizer; actuators for the totalizer; a drive shaft; manipulative means to operate the actuators and the shaft; and a shiftable closure to normally prevent access to the totalizer; of safeguards to prevent mismanipulation of the totalizer, when the closure is opened, including normally idle means adapted to receive a fixed extent ofmovement to lock the totalizer, and noremally idle means adapted to receive variable extents of movements to lock the drive shaft; a connection between-the means for locking the totalizer and the means for locking the drive shaft, said connection constructed to compensate for the variable movements of the drive shaft locking means; and means under control of the closure to determine whether the locking means, shall be effective or ineffective.

a 3. In a machine of the class described, th

"combination with a totalizer; actuators-for.

and a shiftable closure to normally prevent to the totalizer; of safeguards to revent mismanipulation of the totalizer, w en the closure is opened, including normally idle means to lock the totalizer; and normally F idle means to lock thedrive shaft; a loose connection between the means forlocking the totalizer and the means for locking the .drive shaft; separate means to shift'the respective locking means to their effective position; and means under control of the closure to determine whether the locking means shall I be effective or ineffective.

4. In a machine of the class described, the combination with a totalizer; actuators therefor; a, drive shaft; mani ulative means to operate the actuators an r the shaft; and a:

shiftable closure tonormally revent access to the/totalizer; of detents shi table into and out of engagement with the totalizer, said shift being always the same extent; a normalslidable connection 1y idle and varlablfyt movable locking means for the drive sha between the detents and the locking means constructed to com ensate for the variable I whether or not the detentsand locking means shall become effective or ineffective.

5. In a machine of the class described, th

combination with a totalizer; actuators therefor; a drive shaft; mani ulative means to 0 rate the actuators an the shaft; and a iftable closure to normally prevent access to the totalizer; of a shaft journaled adjacentto the totalizer; detents mounted on the shaft to engage with and withdraw from the totalizer; a control arm on the shaft; a ratchet wheel on the drive shaft; a pawl to engage with and disengage from the ratchet; sepaate means to actuate the detents and the pawl; a connectionbetween the control arm and the pawl constructed to permit relative movement between the detents and the pawl and a pinv and slot connection between the control arm and the closure. 6. In' a machine of the class described, the

combination with a totalizer; actuators therefor; a drive shaft; manipulative means to o rate the actuators andthe shaft; and a s 'ftable closure to normally revent access to the totalizer; of detents shi able into and out of engagement with the totalizer; a northe control arm and the. locking means for I the drive shaft; separate means operable 1 upon the detents and the locking means to render them efiective-;and a loose connection between the control arm and the closure to hold the detents and locking means ineflective solong as the closure remains shut.

7 In a machine of the class described, the combination with a totalizer; actuators therefor; a drive shaft; a toothed disk thereon; manipulative means to operate theactuators and the shaft; and a shiftable closure to normally revent access to the totalizer; of detents shiftable into and out of engagement with the totalizer; locking means shiftable into and out of engagement with the toothed disk; yieldabie means to shift the detents and locking means in one direction to lock the totalizer and the shaft, upon movement of the closure to render the totalizer accessiisle; means actuated by the closure, upon movement thereof to render the totalizer inaccessible, to positively shift the detents in another direction to unlock the totalizer; and means intermediate the detents and the lockingmeans to positively shift the latter to unlock the shaft upon positive operation of the detents.

In testimony whereof I afix my signature.

PASCAL SBURLING. 

